Blogging and social networking

I'm the so-called Web guy – I need to put that title on my business card – and the ad people bring up the use of Twitter, MySpace, and Facebook as some tools that would allow us to connect with our online readership.

In light of the RMN use of Twitter at a funeral, I was wondering if any you all out there have to Twitter or post to social networking sites in your day-to-day routine?
Obviously the ad people are clueless since using Facebook and MySpace doesn't bring any additional revenue in. I don't see who it would draw readers into a paper's Web site either.